Budapest's Communist-era statues, banished to the suburbs.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

Indents in the pavement are all that remain from a grisly death machine in Paris.

This magnificent stepwell is designed as an inverted temple and adorned with 1,500 sculptures.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

No one messes with the Massachusetts sacred cod, not this time...

This parking garage was the site of what was - at the time - the largest cash robbery in history.

This historic patch of real estate offers a glimpse of colonial Boston.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

Plaque remembering the 18th century forced relocation of Acadians.

Hidden among the trees at the Rangeley Lakes Trails Center are more than 20 gnomes in small wooden houses.

This structure was moved nearly 40 feet while people continued working inside it.

The strange, ritualistic-seeming 100+ year old basement of a New Hampshire undergrad society.

A breathtaking 19th-century trail overlooks Lake Tahoe.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

A temple devoted to inner esoteric mysteries located in a California commercial strip.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

An ancient city exhumed from the depths of the ocean.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

A B&B on a Victorian lighthouse station in San Francisco Bay.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.